19313780

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1151}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 40642560

約数和(自身を除く): 21328780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1151, 1678, 2302, 3356, 4195, 4604, 5755, 8390, 11510, 16780, 23020, 965689, 1931378, 3862756, 4828445, 9656890, 19313780]

約数ペア:

[(1, 19313780), (2, 9656890), (4, 4828445), (5, 3862756), (10, 1931378), (20, 965689), (839, 23020), (1151, 16780), (1678, 11510), (2302, 8390), (3356, 5755), (4195, 4604)]